Clark Hulings, Grand Canyon (1970), oil, 22 x 44. Estimate: $200,000-$300,000. ← Previous Next → Clark Hulings, Grand Canyon (1970), oil, 22 x 44. Estimate: $200,000-$300,000. Clark Hulings, Grand Canyon (1970), oil, 22 x 44. Estimate: $200,000-$300,000.