Sewemup WSA
Season Dates: April - October 

Fees: None

Site Overview: This area is unique because of its outstanding naturalness. The isolated mesa top with scenic cliffs provide for one of the last undisturbed high pinyon-juniper mesas in Western Colorado.  Excellent opportunities for solitude and unconfined recreation exist here., and the isolated mesa top offers scenic vistas of Sinbad Valley as well as the La Sal Mountains.  Impressive sandstone cliffs which almost entirely surround the mesa top makes it difficult to access and has kept it one of the most ecologically pristine areas in Colorado.

Historically an obscure and little-traveled region, Sewemup Mesa derives its name from the cattle rustling days of the McCarty Gang. It is said that the rustlers burnt off and "sewed up" the cattle's rightful brands in exchange for their own. It is obvious now days why a band of rustlers would have chosen Sewemup and its vicinity for a hide-out. It is a place where there has been very little human trace.

Wingate Sandstone thousand foot high cliffs encircle more than 3/4 of Sewemup Mesa. These cliffs are remnants of a collapsed salt dome and tower above Sinbad Valley and the Dolores River. Ponderosa Pines grow directly from the sandstone terraces along the western cliffs. Domes of pink-banded Entrada Sandstone dot the top of the mesa.

NOTE:  There are no developed trail systems in the Sewemup Wilderness Study Area. This is an extremely remote area, and travel through this area requires backcountry skills and detailed maps. 

Brochures: None

Map: None

Location: From Hwy 50 at Whitewater south of Grand Junction head south on Hwy 141. Travel approximately 40 miles toward the town of Gateway. From Gateway, continue on Hwy 141 another 8 miles to County Road Z6.00 which forms the northern boundary of the WSA. This road runs along Salt Creek to Sinbad Valley and the west side of the WSA. Please respect private property and close gates along the access route through Sinbad Valley.

Contact Information: Grand Junction Field Office 970-244-3000


HikingHorseback Riding



Sewemup WSA

Additional Recreation Opportunities in the Gateway AreaThe Palisade is a prominent feature in the Gateway area

Gateway Trailhead                         Mountain BikingHiking

West Creek Day Use Area              PicnickingFishing

Palisade WSA                                 HikingHorseback Riding


Unaweep Seep                              Information Kiosk


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