May 30, 2020, MAQUOKETA, IOWA, USA: Eastern Columbine Wildflowers are seen throughout Maquoketa Caves State Park located at 9688 Caves Rd., Maquoketa, Iowa..Enormous bluffs tower throughout the park, and a six-mile trail system winds through geologic formations and forests brimming with natural beauty..As one of the state’s earliest state parks, Maquoketa Caves has been a popular destination for picnickers and hikers since the 1860s. (Credit Image: © Kevin E. Schmidt/ZUMA Press Wire) Stock Photo
RM2K18HYAMay 30, 2020, MAQUOKETA, IOWA, USA: Eastern Columbine Wildflowers are seen throughout Maquoketa Caves State Park located at 9688 Caves Rd., Maquoketa, Iowa..Enormous bluffs tower throughout the park, and a six-mile trail system winds through geologic formations and forests brimming with natural beauty..As one of the state’s earliest state parks, Maquoketa Caves has been a popular destination for picnickers and hikers since the 1860s. (Credit Image: © Kevin E. Schmidt/ZUMA Press Wire)
May 30, 2020, MAQUOKETA, IOWA, USA: A type of Harvestmen arachnid ''spider'' makes it's way throught the undergrowth in Maquoketa Caves State Park located at 9688 Caves Rd., Maquoketa, Iowa..Enormous bluffs tower throughout the park, and a six-mile trail system winds through geologic formations and forests brimming with natural beauty..As one of the state’s earliest state parks, Maquoketa Caves has been a popular destination for picnickers and hikers since the 1860s. (Credit Image: © Kevin E. Schmidt/ZUMA Press Wire) Stock Photo
RM2K18HYCMay 30, 2020, MAQUOKETA, IOWA, USA: A type of Harvestmen arachnid ''spider'' makes it's way throught the undergrowth in Maquoketa Caves State Park located at 9688 Caves Rd., Maquoketa, Iowa..Enormous bluffs tower throughout the park, and a six-mile trail system winds through geologic formations and forests brimming with natural beauty..As one of the state’s earliest state parks, Maquoketa Caves has been a popular destination for picnickers and hikers since the 1860s. (Credit Image: © Kevin E. Schmidt/ZUMA Press Wire)
May 30, 2020, MAQUOKETA, IOWA, USA: Fern and moss growth cover bolders that have long ago fallen from the cliffs at the entrance of ''Middle Dancehall Cave'' in Maquoketa Caves State Park located at 9688 Caves Rd., Maquoketa, Iowa..Enormous bluffs tower throughout the park, and a six-mile trail system winds through geologic formations and forests brimming with natural beauty..As one of the state’s earliest state parks, Maquoketa Caves has been a popular destination for picnickers and hikers since the 1860s. (Credit Image: © Kevin E. Schmidt/ZUMA Press Wire) Stock Photo
RM2K18HY4May 30, 2020, MAQUOKETA, IOWA, USA: Fern and moss growth cover bolders that have long ago fallen from the cliffs at the entrance of ''Middle Dancehall Cave'' in Maquoketa Caves State Park located at 9688 Caves Rd., Maquoketa, Iowa..Enormous bluffs tower throughout the park, and a six-mile trail system winds through geologic formations and forests brimming with natural beauty..As one of the state’s earliest state parks, Maquoketa Caves has been a popular destination for picnickers and hikers since the 1860s. (Credit Image: © Kevin E. Schmidt/ZUMA Press Wire)
May 30, 2020, MAQUOKETA, IOWA, USA: Wooden stairs hug the cliff coming out of ''Middle Dancehall Cave'' in Maquoketa Caves State Park located at 9688 Caves Rd., Maquoketa, Iowa..About 13 caves can be found in the park, some of which can be explored by walking, while others are better suited for serious spelunkers who are used to crawling in tight spaces..With more caves than any state park, Maquoketa Caves is one of Iowa’s most popular outdoor attractions. .Enormous bluffs tower throughout the park, and a six-mile trail system winds through geologic formations and forests brimming with natur Stock Photo
RM2K18J21May 30, 2020, MAQUOKETA, IOWA, USA: Wooden stairs hug the cliff coming out of ''Middle Dancehall Cave'' in Maquoketa Caves State Park located at 9688 Caves Rd., Maquoketa, Iowa..About 13 caves can be found in the park, some of which can be explored by walking, while others are better suited for serious spelunkers who are used to crawling in tight spaces..With more caves than any state park, Maquoketa Caves is one of Iowa’s most popular outdoor attractions. .Enormous bluffs tower throughout the park, and a six-mile trail system winds through geologic formations and forests brimming with natur